Malik can do a certain job in 12 days. Vikram is 60% more efficient than Malik. The number of days, it takes Vikram to do the same piece of work, is.

6 days

6 and half days

7 days

7 and half days

Ratio of times taken by Malik and Vikram = 160:100 = 8:5 8 : 5 :: 12 : x or 8x = 5*12 or x = 7 and half days.

the ratio is 100:160 ... why u wrote 160 :100

really i am also having confusion related to that how we u r able to write like that 160:100 how will we take ratio of time?

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